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Building HVAC Science — Education
Building HVAC Science

Exploring the science, people, and practices shaping better buildings.

The Building HVAC Science Podcast dives into both the technical and human sides of heating, ventilation, air conditioning, and building performance. Hosted by industry veteran Bill Spohn, CEO and co-owner of TruTech Tools, the show reflects Bill’s passion for advancing the HVAC craft through practical knowledge, curiosity, and conversation.

With more than 250 episodes and counting, the podcast features discussions with contractors, distributors, manufacturers, educators, and thought leaders from across the HVAC and building science communities. Each episode blends field experience with broader industry perspective, helping professionals stay ahead of trends, sharpen their skills, and build stronger businesses.

Topics include:

New tools, technologies, and field practices
Real-world case studies and lessons learned
Building performance, comfort, and indoor air quality
Industry innovation, workforce development, and the human side of the trades

Whether you’re a technician in the field, a business owner, a manufacturer, or simply curious about how buildings breathe and perform, Building HVAC Science connects you with the ideas and voices moving the industry forward.

Listen on Apple Podcasts, Spotify, or wherever you get your podcasts.

This show is a production of TruTech Tools®, LTD.

Latest Episodes:

EP70 Getting an early start in the trades with Elana and Jordan Day (March 2022) Apr 01, 2022

Show notes

The title for this episode could mean a couple things:

"Getting an early start" as in developing an early morning routine
"Getting an early start" as in beginning to learn the trades in high school

Well, Elana Day takes the second meaning to an extreme.

Join us as Elana and her dad, Jordan, describe how she has become a LinkedIn phenom with a video of hers gathering thousands of views in a very short time.

Elana started at age 5 and now, at age 9 has quite a repertoire of projects completed.

You'll enjoy hearing from Jordan, a licensed Master Plumber and Certified HVAC technician who employs the elements of Greek Pedagogy in raising his family.

Elana follows excellent safety practices and works hard to learn improve her skills. Yet, she is a "regular kid" who is just drawn to do this.

Jordan is an Autodidact – a term you may have heard Bryan Orr use before.

Wikipedia article: https://en.wikipedia.org/wiki/Autodidacticism

You can find Elana doing her thing on YouTube at this linkhttps://www.youtube.com/channel/UC1PLmZrxcVu09_rWjy1YkmA

Or by searching for Lil'MissFixIt on YouTube

You'll also find her dad, Jordan Day on LinkedIn:

https://www.linkedin.com/in/jordan-day-93590220b/

…where he recently posted about Elana:

"This International Women's Day, I would like to give a shoutout to my amazing daughter. She is 9 years old and wants to become an engineer, but she also has strong interests in the skilled trades. When it comes to her future career, her hobbies, her interests and yes, even her worldview, I do my best to let her carve her own path. I feel that she has already taught me more than I could ever teach her."

This episode was recorded in March 2022.

EP69 From particle accelerators to radon measurement, the Airthings story with Erlend Bolle (Jan 2022) Mar 18, 2022

Show notes

This is my first interview with a founder of a publicly traded company and my second interview with a European guest!

Meet Erlend Bolle, whose life journey took him from working at CERN to a building a global, publicly traded company that innovates consumer and professional grade radon and indoor Air quality Monitors.

His team's initial goal was to create a product relevant for all in volume production that improves people's health.

Learn how the team at Airthings works to understand consumer needs as society, homes and the world changes over time.

CERN details: https://en.wikipedia.org/wiki/CERN

27 kM (16.77 mile) diameter particle accelerator

You can find Erlend on LinkedIn: https://www.linkedin.com/in/erlendbolle/

And learn more about this company, AirThings here: https://www.airthings.com/

And see his products for sale at TruTech Tools, here: https://www.trutechtools.com/Airthings

This episode was recorded in January 2022.

EP68 Sustainability for homes with Brett Little Mar 11, 2022

Show notes

Brett approaches sustainability with thoughtfulness and enthusiasm.

He is the Program Manager at GreenHome Institute, has been involved in residential sustainability since 2008, and holds a bachelor's in Sustainable Business.

Brett has provided consulting and verification services on thousands of residential green-certified living spaces and certified four projects as a LEED Green Rater. Brett oversees education services providing training or moderations for hundreds of events with thousands of attendees.

Brett lives with his family in West Michigan in a GreenStar certified home targeting zero carbon in 2021. His mission is to help you build, BETTER.

Additionally, he takes personal steps along these lines and share his experiences.

Learn about his radon monitoring experiences here: https://www.airthings.com/resources/brett-radon-story

He shares is Carbon Zero Home renovation journey here: https://www.buildwithrise.com/stories/financing-a-carbon-zero-home-renovation

You can find Brett on LinkedIn: https://www.linkedin.com/in/brett-little-0b3ab71b/

Brett's day job is Program Manager at the Green Home Institute: https://greenhomeinstitute.org/

This episode was recorded in January 2022.

EP67 Residential HVAC design has not changed much in 20+ years with Russ King (Aug 2021) Mar 04, 2022

Show notes

Russ King is a rare breed.

He is equally inventor, author (both technical and fiction), software developer, design practitioner, instructor and installer.

Above all that, he is passionate, thoughtful, kind, smart and loves to share what he knows.

If you get a chance, go see Russ present some time.

You can find Russ on LinkedIn: https://www.linkedin.com/in/russell-king-m-e-70342913/

He's got a really cool blog with an awesome tagline: "Offering good advice, whether you want it or not."

https://russellking.me/

Russ and his son Connor have developed an awesome modeling tool: www.KwikModel.com

This episode was recorded in August 2021.

EP66 The Art & Science of Healthy Homes with Joe Medosch Feb 25, 2022

Show notes

Joe is one of the coolest guys I know.

He probably doesn't think of himself that way.

He's been so influential in changing the perception and understanding of IAQ and healthy homes in the last few years.

And he is SO PASSIONATE about getting people to understand.

He is always testing products and building props and animations to teach others.

If you get a chance, go see Joe present some time.

You can find Joe on LinkedIn: https://www.linkedin.com/in/joemedosch

You can learn more about the Hayward Score at: www.HaywardScore.com

This episode was recorded in Dec 2021.

EP65 Let's talk mold with Jason Earle (January 2022) Feb 18, 2022

Show notes

Jason Earle of GotMold.com gives a fascinating tour of his personal journey and how he ended up breaking the price barrier for lab testing of mold in the air.

Jason has set up a special landing page for our listeners:

https://www.gotmold.com/trutech

AND… a 10% discount code just for you! Trutech10

This episode was recorded in January 2022.

EP64 All houses are different, some can be deadly with Paul Raymer (Sept 2021) Feb 11, 2022

Show notes

Paul's a unique, but complex man: equal parts scientist, inventor, business owner, practitioner, and author.

Paul's technical website is https://www.heyokasolutions.com/aboutus.asp and his publishing website is https://www.paulhraymer.com/, Salty Air Publishing

The Residential Ventilation Handbook is a must read for those in building science.

This episode was recorded in Sept 2021.

EP63 The History and Mission of UEi with Michael Kane (Sept 2021) Feb 04, 2022

Show notes

I'm so happy to bring the voice, thoughts, and ideas of Michael Kane to the Building HVAC Podcast!

You'll hear about the art and process of product development that has evolved through 2 generations of ownership of this family business.

Michael is a man of patience and empathy and greatly respects the dignity, value and skill of the trades, He hopes to create the best products for people in the trades to better do their jobs.

You can learn more about UEI products at Michael's website: www.UEitest.com or at www.TruTechtools.com/UEi

This episode was recorded in Sept 2021.

EP62 The Next Evolution in Healthy Air with Dawn Oggier & Brian Kennihan Jan 28, 2022

Show notes

Since January is Radon awareness month, I've invited 2 people deeply involved in the Radon industry to be my guests today.

Dawn Oggier, is Manager of Market Development for RadonAway and

National Director for AARST – the American Association of Radon Scientists and Technologists (https://aarst.org/)

Brian Kennihan is the Business Development Manager for AprilAire.

If you are catching this episode before or during your visit to the 2022 AHR Expo you can visit with both guests!

Dawn at booth N8617: Spruce Environmental Technologies

And

Brian at booth C3706: AprilAire a Division of Research Products

LinkedIn connections:

Dawn: https://www.linkedin.com/in/dawn-oggier-3276481a3/

Brian: https://www.linkedin.com/in/brian-kennihan-ba3677b3/

You can learn more about their organizations:Spruce Environmental Technologies/ RadonAway: https://www.radonaway.com/

AprilAire Radon products at: www.aprilairepartners.com/

This episode was recorded in Jan 2022.

EP61 A unique approach to efficient urban housing with Brian Gaudio (July 2019) Jan 21, 2022

Show notes

Brian is on a mission with this company, Module Housing.

Their tag line says it all:

Designed for people and planet powered by offsite construction.

Connect with him on LinkedIn: https://www.linkedin.com/in/briangaudio/

Or via his website: https://www.modulehousing.com/

This episode was recorded in July 2019.

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